president obama, to south africa starting today. robin kurnow is outside mandela's home this morning. you've just spoken to one of his closest confidants. what did she say? >> we are hearing for the first time what is going on inside this house behind me. the home where nelson mandela died. we have been seeing a lot of people coming outside in the past few days laying flowers, paying their respects. we understand according to african tradition, nelson mandela's wife is sitting on a mattress in the living room in the lounge and receiving people throughout the day. she will be essentially sitting in that position welcoming visitors and there are a lot of visitors. political leaders, friends. people from across south africa that have some sort of importance and they are coming to pay their respects to the widow. we are also hearing from mandela's closest assistant who has worked for him for nearly 20 years, and she gives us some sense what have it's like inside. >> sadness in the house but celebration i almost want to say. people are c